Monthly outlook for Purchase Line, PA: average high 64.2°, average low 48.7°. That is 7.5° above the climate normal for October. Precipitation is expected on 3 days (about 0.8 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 3 November (69.6°), the coolest 31 October (36.6°).
64.2°/48.7°
Average high / low
+7.5°
Above normal
3 / 6
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
30 October – 8 November
64.9°
52.4°
+7°
9 November – 18 November
63°
47.1°
+8.8°
19 November – 28 November
at normal
44.2°
—
October records over 66 years
83.7°4 October 2007All-time high
20.8°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Westover (13 mi).
Sat, 3159° / 37°0
59 °
Purchase Line, Saturday, 31 October
Mostly clear. High 59°, low 37°.
Pressure30.50 inHg
Wind1.4 mph N
Humidity60%
Visibility6.2 mi
Dew point38°
Sun, 0162° / 44°0
62 °
Purchase Line, Sunday, 1 November
Overcast. High 62°, low 44°.
Pressure30.47 inHg
Wind6.9 mph SE
Humidity45%
Visibility6.2 mi
Dew point39°
Mon, 0267° / 45°0
67 °
Purchase Line, Monday, 2 November
Clear. High 67°, low 45°.
Pressure30.36 inHg
Wind3.1 mph SW
Humidity50%
Visibility6.2 mi
Dew point43°
Tue, 0370° / 48°0
70 °
Purchase Line, Tuesday, 3 November
Overcast. High 70°, low 48°.
Pressure30.24 inHg
Wind6.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point41°
Wed, 0468° / 51°0
68 °
Purchase Line, Wednesday, 4 November
Light rain. High 68°, low 51°.
Pressure30.12 inHg
Wind12.8 mph SE
Humidity71%
Visibility—
Dew point51°
Thu, 0563° / 53°0.18
63 °
Purchase Line, Thursday, 5 November
Rain. High 63°, low 53°.
Pressure30.00 inHg
Wind14.1 mph SE
Humidity91%
Visibility—
Dew point57°
Fri, 0668° / 49°0
68 °
Purchase Line, Friday, 6 November
Mostly clear. High 68°, low 49°.
Pressure30.12 inHg
Wind4.5 mph SE
Humidity73%
Visibility—
Dew point50°
Sat, 0763° / 54°0
63 °
Purchase Line, Saturday, 7 November
Overcast. High 63°, low 54°.
Pressure30.15 inHg
Wind4.5 mph E
Humidity89%
Visibility—
Dew point56°
Sun, 0869° / 54°0
69 °
Purchase Line, Sunday, 8 November
Overcast. High 69°, low 54°.
Pressure30.24 inHg
Wind3.2 mph NW
Humidity80%
Visibility—
Dew point55°
Mon, 0967° / 52°0
67 °
Purchase Line, Monday, 9 November
Overcast. High 67°, low 52°.
Pressure30.33 inHg
Wind3.8 mph E
Humidity79%
Visibility—
Dew point53°
Tue, 1066° / 50°0
66 °
Purchase Line, Tuesday, 10 November
Overcast. High 66°, low 50°.
Pressure30.27 inHg
Wind6.3 mph NE
Humidity76%
Visibility—
Dew point51°
Wed, 1158° / 51°0.15
58 °
Purchase Line, Wednesday, 11 November
Light rain. High 58°, low 51°.
Pressure30.00 inHg
Wind6.2 mph SW
Humidity88%
Visibility—
Dew point53°
Thu, 1259° / 49°0
59 °
Purchase Line, Thursday, 12 November
Overcast. High 59°, low 49°.
Pressure30.00 inHg
Wind5.7 mph SW
Humidity91%
Visibility—
Dew point50°
Fri, 1369° / 51°0.02
69 °
Purchase Line, Friday, 13 November
Light rain. High 69°, low 51°.
Pressure29.88 inHg
Wind12.3 mph SE
Humidity58%
Visibility—
Dew point51°
Sat, 1460° / 51°0.42
60 °
Purchase Line, Saturday, 14 November
Rain. High 60°, low 51°.
Pressure29.65 inHg
Wind15.4 mph SW
Humidity79%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 1547° / 33°0.14
47 °
Purchase Line, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.14 in
Chance of precipitation48%
Record high65° (1989)
Record low13° (1996)
Mon, 1646° / 33°0.14
46 °
Purchase Line, Monday, 16 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.14 in
Chance of precipitation42%
Record high62° (1990)
Record low6° (1967)
Tue, 1745° / 32°0.13
45 °
Purchase Line, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.13 in
Chance of precipitation35%
Record high63° (2023)
Record low20° (1969)
Wed, 1845° / 33°0.09
45 °
Purchase Line, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation33%
Record high67° (2016)
Record low14° (2014)
Thu, 1946° / 33°0.13
46 °
Purchase Line, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.13 in
Chance of precipitation33%
Record high68° (1985)
Record low12° (2014)
Fri, 2045° / 32°0.12
45 °
Purchase Line, Friday, 20 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.12 in
Chance of precipitation38%
Record high69° (1991)
Record low15° (1980)
Sat, 2143° / 32°0.11
43 °
Purchase Line, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.11 in
Chance of precipitation43%
Record high62° (2007)
Record low17° (1987)
Sun, 2244° / 31°0.11
44 °
Purchase Line, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.11 in
Chance of precipitation43%
Record high63° (1999)
Record low11° (2018)
Mon, 2344° / 30°0.06
44 °
Purchase Line, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.06 in
Chance of precipitation30%
Record high64° (1979)
Record low15° (2000)
Tue, 2444° / 30°0.11
44 °
Purchase Line, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.11 in
Chance of precipitation37%
Record high62° (2014)
Record low12° (2005)
Wed, 2544° / 31°0.12
44 °
Purchase Line, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.12 in
Chance of precipitation47%
Record high61° (1979)
Record low9° (2005)
Thu, 2645° / 32°0.19
45 °
Purchase Line, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.19 in
Chance of precipitation48%
Record high61° (1979)
Record low16° (2005)
Fri, 2744° / 32°0.14
44 °
Purchase Line, Friday, 27 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.14 in
Chance of precipitation52%
Record high64° (1990)
Record low19° (1974)
Sat, 2843° / 32°0.21
43 °
Purchase Line, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.21 in
Chance of precipitation53%
Record high67° (1990)
Record low17° (2002)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Purchase Line, PA are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in Purchase Line, PA since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.